Can walkies tell who's the leader of the pack?

January 23, 2014

This is a Vizsla dog wearing high-precision GPS harness, data from which was used to determine dogs' social rankings. Credit: Zsuzsa Ákos

Dogs' paths during group walks could be used to determine leadership roles and through that their social ranks and personality traits, say researchers from Oxford University, Eötvös University, Budapest and the Hungarian Academy of Sciences (HAS).

Using high-resolution GPS harnesses, scientists tracked the movements of six dogs and their owner across fourteen 30-40 minute walks off the lead. The dogs' movements were measurably influenced by underlying social hierarchies and personality differences.

'We showed that it is possible to determine the social ranking and personality traits of each dog from their GPS movement data,' said study author Dr Máté Nagy of Oxford University's Department of Zoology, formerly of Eötvös University and HAS. 'On individual walks it is hard to identify one permanent leader, but over longer timescales it soon becomes clear that some dogs are followed by peers more often than others. Overall, the collective motion of the pack is strongly influenced by an underlying social network.'

The study, published in PLOS Computational Biology, demonstrates the power of path tracking to measure social behaviour and automatically determine dogs' personalities. In future, one possible use of the technology would be to assess search and rescue dogs to see which dogs work best together. As dogs are ideal models of human behaviour, the same methods could be used to study social interactions in humans such as parents walking with their children. The study is part of the European Research Council project COLLMOT led by Professor Tamás Vicsek (Eötvös University and HAS) which aims to understand the collective motion a wide variety of different organisms in nature.

This video is not supported by your browser at this time.

Credit: Enikő Kubinyi

How dogs behave during walks reveals a lot about traits such as trainability, controllability, aggression, age and dominance. Dogs that consistently took the lead were more responsive to training, more controllable, older and more aggressive than the dogs that tended to follow. Dogs that led more often had higher dominance ranks in everyday situations, assessed by a dominance questionnaire.

'The dominance questionnaire tells us the pecking order of dog groups by quantifying interactions between pairs,' said Dr Enikő Kubinyi, senior author of the study from the Hungarian Academy of Sciences. 'For example, the dogs that bark first and more when strangers enter the house, eat first at meals and wins fights are judged as more dominant. Conversely, dogs that lick other dogs' mouths more often are less dominant as this is a submissive display.'

Pack leadership is well-established in wolves, where packs are typically led by a single breeding pair, but there is still much debate as to whether groups of domestic dogs have a social hierarchy.

'These dogs have no breeding pair,' said Dr Kubinyi. 'However, there are dogs who take the lead more often than others. On average, an individual took the role of the leader in a given pair in about three quarters of the time. This ratio is of similar magnitude to the case of wild wolf packs with several breeding individuals. Using this qualitative data over longer time scales allows us to see the more subtle relationships that might otherwise be missed. Of course, hierarchies are likely to vary across breeds and individual groups, so we hope to use this technology on other animals in future to investigate further.'

The dogs used in this study were of the Vizsla breed, a Hungarian hunting dog known for their good-natured temperament and trainability. It is interesting to note that the leader-follower relationships were always voluntary; dogs chose who to follow and the leaders did not compel other dogs to follow them.

The technology used in the study could be applied to other dogs used for search and rescue to provide quantitative data allowing handlers to compare how different dogs work together and pick those with the highest compatibility. Each device weighs only 14 grams and further sensors such as gyroscopes could be used to determine what each animal is doing at a given time.

Wolves can learn from observing humans and pack members where food is hidden and recognize when humans only pretend to hide food, reports a study for the first time in the open-access journal Frontiers in Psychology. These ...

So far the specialized skill for recognizing facial features holistically has been assumed to be a quality that only humans and possibly primates possess. Although it's well known, that faces and eye contact play an important ...

Aggressive dogs represent a serious risk to human health, tragically causing fatalities in rare cases. The development of aggression can also impact on a dog's welfare, because of a breakdown of the human-pet bond, euthanasia ...

Recommended for you

Professor Hyun-Gyu Park of the Department of Chemical and Biomolecular Engineering at Korea Advanced Institute of Science and Technology (KAIST) has developed a technique to analyze various target DNAs using an aptamer, a ...

As an National Science Foundation (NSF)-funded entomologist, Virginia Tech's Paul Marek has to spend much of his time in the field, hunting for rare and scientifically significant species. He's provided NSF with an inside ...

Researchers at the University of Illinois at Chicago and Northwestern University have engineered a tethered ribosome that works nearly as well as the authentic cellular component, or organelle, that produces all the proteins ...

0 comments

Please sign in to add a comment.
Registration is free, and takes less than a minute.
Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.